GB2108719B - Image formation apparatus - Google Patents

Image formation apparatus

Info

Publication number
GB2108719B
GB2108719B GB08228797A GB8228797A GB2108719B GB 2108719 B GB2108719 B GB 2108719B GB 08228797 A GB08228797 A GB 08228797A GB 8228797 A GB8228797 A GB 8228797A GB 2108719 B GB2108719 B GB 2108719B
Authority
GB
United Kingdom
Prior art keywords
image formation
formation apparatus
image
formation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB08228797A
Other versions
GB2108719A (en
Inventor
Koji Suzuki
Yoshikazu Yokomizo
Yoshihiro Kawatsura
Shinkichi Takahashi
Hiroaki Tsuchiya
Shinichi Iwasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP10304078A external-priority patent/JPS5529860A/en
Priority claimed from JP10303678A external-priority patent/JPS5529856A/en
Priority claimed from JP10303778A external-priority patent/JPS5529857A/en
Application filed by Canon Inc filed Critical Canon Inc
Publication of GB2108719A publication Critical patent/GB2108719A/en
Application granted granted Critical
Publication of GB2108719B publication Critical patent/GB2108719B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0266—Arrangements for controlling the amount of charge
GB08228797A 1978-08-24 1982-10-08 Image formation apparatus Expired GB2108719B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP10304078A JPS5529860A (en) 1978-08-24 1978-08-24 Image former
JP10303678A JPS5529856A (en) 1978-08-24 1978-08-24 Image former
JP10303778A JPS5529857A (en) 1978-08-24 1978-08-24 Electrostatic recorder

Publications (2)

Publication Number Publication Date
GB2108719A GB2108719A (en) 1983-05-18
GB2108719B true GB2108719B (en) 1983-09-28

Family

ID=27309872

Family Applications (2)

Application Number Title Priority Date Filing Date
GB7929344A Expired GB2039101B (en) 1978-08-24 1979-08-23 Control of electrostatic recording apparatus
GB08228797A Expired GB2108719B (en) 1978-08-24 1982-10-08 Image formation apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB7929344A Expired GB2039101B (en) 1978-08-24 1979-08-23 Control of electrostatic recording apparatus

Country Status (3)

Country Link
US (1) US5164771A (en)
DE (1) DE2934337A1 (en)
GB (2) GB2039101B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4367948A (en) * 1979-04-24 1983-01-11 Canon Kabushiki Kaisha Surface potential electrometer and image forming apparatus using the same
DE3038367C2 (en) * 1979-10-13 1994-06-23 Canon Kk Electrophotographic device
DE3128801A1 (en) * 1980-07-22 1982-04-15 Canon K.K., Tokyo "IMAGE GENERATION DEVICE"
US4432634A (en) * 1980-10-20 1984-02-21 Minolta Camera Kabushiki Kaisha Electrophotographic copying apparatus
US4502777A (en) * 1981-05-02 1985-03-05 Minolta Camera Kabushiki Kaisha Transfer type electrophotographic copying apparatus with substantially constant potential control of photosensitive member surface
US4678317A (en) * 1985-11-04 1987-07-07 Savin Corporation Charge and bias control system for electrophotographic copier
JP2786657B2 (en) * 1989-03-23 1998-08-13 株式会社東芝 Image forming device
US5619308A (en) * 1992-05-19 1997-04-08 Minolta Camera Kabushiki Kaisha Electrophotographic image forming apparatus adjusting image forming means based on surface voltage of photoconductor
US5621630A (en) * 1993-04-26 1997-04-15 Canon Kabushiki Kaisha Power source apparatus of image forming apparatus
DE69530343T2 (en) * 1994-08-22 2003-12-11 Canon Kk Method for checking the state of imaging in an imaging device
JPH09160359A (en) * 1995-12-05 1997-06-20 Fuji Electric Co Ltd Electrophotographic process
JP2002341630A (en) * 2001-05-16 2002-11-29 Canon Inc Image forming apparatus
JP2003035987A (en) * 2001-07-23 2003-02-07 Canon Inc Image forming device
JP4255337B2 (en) * 2003-03-04 2009-04-15 シャープ株式会社 Image forming method and image forming apparatus
JP6478619B2 (en) * 2014-01-06 2019-03-06 キヤノン株式会社 Power supply device, image forming apparatus

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321307A (en) * 1963-07-15 1967-05-23 Eastman Kodak Co Exposure control in xerographic printing
DE1522619B2 (en) * 1966-04-29 1976-06-24 Grabe, Bernt Fried Walther von, Feasterville, Pa. (V.St.A.) METHOD AND DEVICE FOR KEEPING THE CORONA DISCHARGE CURRENT CONSTANT IN AN ELECTROPHOTOGRAPHIC CORONA CHARGING DEVICE
BE715685A (en) * 1967-07-06 1968-10-16
US3604925A (en) * 1968-12-03 1971-09-14 Zerox Corp Apparatus for controlling the amount of charge applied to a surface
GB1265939A (en) * 1970-01-13 1972-03-08
US3788739A (en) * 1972-06-21 1974-01-29 Xerox Corp Image compensation method and apparatus for electrophotographic devices
US3805069A (en) * 1973-01-18 1974-04-16 Xerox Corp Regulated corona generator
GB1419725A (en) * 1974-04-18 1975-12-31 Rank Xerox Ltd Copying machines
US3892481A (en) * 1974-06-17 1975-07-01 Savin Business Machines Corp Automatic development electrode bias control system
JPS5441502B2 (en) * 1974-10-21 1979-12-08
US4028596A (en) * 1974-12-13 1977-06-07 Coulter Information Systems, Inc. Corona power supply circuit
US3950680A (en) * 1975-04-28 1976-04-13 Xerox Corporation Electrostatographic diagnostics system
DE2611503C2 (en) * 1975-04-28 1986-09-04 Xerox Corp., Rochester, N.Y. Electrostatic copier
FR2328224A1 (en) * 1975-10-14 1977-05-13 Eastman Kodak Co ELECTROPHOTOGRAPHIC COPIER EQUIPPED WITH AN APPARATUS FOR COMPENSATION OF VARIATIONS IN THE SENSITIVITY OF A PHOTOCONDUCTING UNIT FORMING PART OF THE COPIER
CA1103744A (en) * 1975-10-14 1981-06-23 Eastman Kodak Company Electrophotographic apparatus having compensation for rest-run performance variations
US4019102A (en) * 1975-10-16 1977-04-19 General Electric Company Successive approximation feedback control system
US4082445A (en) * 1975-11-21 1978-04-04 Xerox Corporation Toner control system for an electrostatic reproduction machine
JPS5280845A (en) * 1975-12-27 1977-07-06 Canon Inc Electrophotographic copier
DE2723673A1 (en) * 1976-05-26 1977-12-08 Canon Kk METHOD AND DEVICE FOR CHARGING BY CORONA DISCHARGE
JPS6040024B2 (en) * 1976-09-17 1985-09-09 キヤノン株式会社 Electrostatic latent image stabilization method
US4226525A (en) * 1976-10-19 1980-10-07 Ricoh Company, Ltd. Electrostatic copying machine
US4063155A (en) * 1976-11-26 1977-12-13 Xerox Corporation D.C. Electrometer probe
US4063154A (en) * 1976-11-26 1977-12-13 Xerox Corporation D. C. electrometer
US4153364A (en) * 1977-01-28 1979-05-08 Ricoh Company, Ltd. Exposure and development control apparatus for electrostatic copying machine
JPS5398838A (en) * 1977-02-09 1978-08-29 Canon Inc Electrophotographic device
DE2807317C3 (en) * 1977-02-23 1982-02-11 Ricoh Co., Ltd., Tokyo Procedure for maintaining optimal conditions in electrophotography
US4138635A (en) * 1977-06-09 1979-02-06 Xerox Corporation Alternating current generator using light dependent resistor
US4140962A (en) * 1977-06-09 1979-02-20 Xerox Corporation High voltage regulator using light dependent resistor
US4166690A (en) * 1977-11-02 1979-09-04 International Business Machines Corporation Digitally regulated power supply for use in electrostatic transfer reproduction apparatus
JPS54100737A (en) * 1978-01-25 1979-08-08 Ricoh Co Ltd Development for zerography

Also Published As

Publication number Publication date
US5164771A (en) 1992-11-17
DE2934337C2 (en) 1990-08-16
GB2108719A (en) 1983-05-18
GB2039101B (en) 1983-05-25
DE2934337A1 (en) 1980-02-28
GB2039101A (en) 1980-07-30

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19990822